Question

Melinda goes bowling on Saturday afternoon, she bowls three games and pays for shoe rental. Define a variable and write an expression to represent the total cost Melinda pays. Then find the total cost if one game cost $4

Answer 1

Fisrt let us define the variableslet y be the total cost melinda paysx be the number of games she playedb be the cost of shoe rentalm is the cost of one game
y = mx + b
y = 4(3) + by = 12 + b 

Answer 2

Answer:

The total cost is $12 plues the cost for shoe rental.

Step-by-step explanation:

Givens

• One game costs $4.
• Melinda bowls three games.
• She pays for shoe rental.

We don't know how much Melinda pays for shoe rental, so that price is gonna be $s$. What we know is that the initial condition is $s$, because at the beginning, that's what she pays.

Also, we know that each game is $4, that means the constant ratio of change is gonna be $4. So, if $C$ represents cost, $s$ represents shoe rental and $g$ represents games, the expresison that models this situation is

$C=4g+s$

Which described that the total costs depends on the total games Melinda is gonna play, and show rental is a constant and initial condition, because the price for shoes won't change.

In the case that Melinda bowls three games, we have $g=3$, replecing this value

$C=4(3)+s\\C=12+s$

Therefore, the total cost is $12 plues the cost for shoe rental.